The tool is not intuitive and the menus are confusing, especially the snapshot view. 

There could be better performance in block storage and the GUI could be improved because not every operation is available. You need some operations in the CLI.

The solution lacks the ability to generate reports from Snapshot. The latest version is not quite as user-friendly as the older versions in terms of basically managing the system. It takes time to learn it and work out how to configure. It could be simplified.

There are always areas for improvement, but they need - 

• Intuitive browser-based GUI;
• Wizard-driven configuration to get up and running quickly;
• Automated non-disruptive (Data ONTAP) upgrade;
• Storage provisioning and disk aggregate management;
• CIFS, NFS, iSCSI, FC, and FCoE configuration;
• Snapshot and SnapMirror management;
• SnapVault support;
• Storage virtual machine management;
• Monitoring of HA pairs;
• Support for SVMs with Infinite Volume;
• User interface enhancements;
• Support for storage Quality of Service (QoS);
• Support for all NetApp FAS systems and FlexArray software;
• Support for NetApp All Flash FAS; and
• Built-in reports and dashboard summarizing data around inventory, capacity, and efficiency at the enterprise level.

It would be great if the GUI can perform the same configurations as the CLI can, but we know this is difficult to implement. For example, it would be nice if there could be an option (after ONTAP installation/configuration) to manually deal with root aggregates (of course with needed restrictions). In some cases, you need to modify its size if your storage is full or something, and of course if root aggregate has some free space (in our test cases we always had). 

Also, we are missing more graphical diagrams, maybe warnings or some help that can be useful to manage with NetApp more easily (in cases when you are not really sure if something could go wrong).

At present, OnCommand Unified Manager has just the monitoring and data protection features. It would be better to add some features for entire cluster management and storage management. 

Automation should also be included so that instead of separately accessing Unified Manager and OnCommand Workflow Automation, we can work in a single window. It is very much required.